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| fossil | |||
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| fossil Any remains, trace, or imprint of a plant or animal that has been preserved in the Earth's crust since some past geologic or prehistoric time | |||
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fossil : 22 a las frases, 13 temas |
| Agricultura | 1 |
| Ambiente | 4 |
| Arte | 1 |
| Carbón | 2 |
| Ciencias de la vida | 2 |
| Ecología | 2 |
| Economía | 1 |
| Electrónica | 1 |
| Finanzas | 2 |
| General | 1 |
| Impuestos | 1 |
| Industria energetica | 3 |
| Química | 1 |